Letter of introduction for Dwight B. Heard on the arrival of National Park Service Director Stephen T. Mather to Phoenix. Mather's visit includes trips to Roosevelt Dam and Tumacácori.

Letter from J. R. Eakin to Arthur C. Ringland about the alignment of 40 acres near the Buggeln ranch.

Letter (copy) from J. R. Eakin to Arthur C. Ringland about the alignment of 40 acres near the Buggeln ranch.

Letter from Herbert Babbitt to Carl T. Hayden about grazing cattle in the park boundaries.